@mixin flex($hov:space-between,$col:center){
  display: flex;
  justify-content: $hov;
  align-items: $col;
}
@mixin bgImg($w:0,$h:0,$img:'',$size:'contain'){
  display: inline-block;
  width: $w;
  height: $h;
  background: url($img) no-repeat center;
  background-size: $size;
}